Geological Society of America

Sunday, 4 November 2012
8:00 AM - 12:00 PM
Ballroom B

8:05 AM

THE GEOLOGICAL SOCIETY OF AMERICA GEOLOGIC TIME SCALE

J. Douglas Walker, University of Kansas, Lawrence, KS and J.W. Geissman, University of Texas at Dallas, Richardson, TX and Samuel A. Bowring, Massachusetts Institute of Technology, Cambridge, MA and Loren E. Babcock, The Ohio State University, Columbus, OH

211848 (Special Sessions)
8:35 AM

A CENTURY OF U-PB GEOCHRONOLOGY: THE LONG QUEST TOWARDS CONCORDANCE

Fernando Corfu, University of Oslo, Oslo, N/A

207449 (Special Sessions)
9:05 AM

CHANGING OCEANIC CONDITIONS THROUGH THE LATE ORDOVICIAN GLACIATION INTO THE EARLIEST SILURIAN GLOBAL ANOXIC EVENT: EVIDENCE FROM BLACK SHALES AND NITROGEN ISOTOPES

Michael Melchin, St. Francis Xavier University, Antigonish, NS and Charles Mitchell, The University at Buffalo, Buffalo, NY and Chris Holmden, University of Saskatchewan, Saskatoon, SK and Petr ŠTorch, Praha, N/A

209295 (Special Sessions)
10:05 AM

CYCLOSTRATIGRAPHY AND ITS REVOLUTIONIZING APPLICATIONS IN THE GEOSCIENCES

Linda A. Hinnov, Johns Hopkins University, Baltimore, MD

210863 (Special Sessions)
10:35 AM

MASS EXTINCTIONS: LESS SEVERE IN THE OCEAN THAN TRADITIONALLY PORTRAYED BUT STILL INTRIGUING

Steven Stanley, University of Hawaii, Honolulu, HI

208335 (Special Sessions)
11:05 AM

PRE-PANGEAN SUPERCONTINENTS COME OF AGE

David Evans, Yale Uniersity Geology & Geophysics, New Haven, CT

213174 (Special Sessions)